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Quality changes of aquifer a relating to plant production
1997
Belic, S. (Poljoprivredni fakultet, Novi Sad (Yugoslavia). Institut za uredjenje voda) | Belic, A. | Bugarski, R.
Neither soil nor water has very distinct function when seen in isolation. Therefore, analyses of water and soil can get real value only by their linkages. Taking into consideration irrigated land, water and soil interaction degree can cause different changes of soil, plants and aquifer A. All negative changes which are occur in the soil (in case of using unsuitable water quality for irrigation or applying of not rational fertilizers amount) have influence to the changes aquifer A quality. Interaction between soil and aquifer A are require investigation of groundwater quality changes relating to plant production, especially in irrigation. Intensity and type of aquifer A properties change, in case of different soil use in agricultural production, have been studying since 1991 at the Lysimetric Station Rimski Sancevi (Serbia, Yugoslavia). The results are point out satisfactory quality of aquifer A after irrigation with wastewater and well water, and applying of different mineral fertilizers amount. The soil capability to receive water with unsuitable quality, to influence their change and change of aquifer A quality as the final recipient, are showed by received results.
Показать больше [+] Меньше [-]Primary production of phytoplankton and zooplankton of the Sava reservoir [Serbia, Yugoslavia]
1997
Brkovic-Popovic, I. (Institut za vodoprivredu "Jaroslav Cerni", Beograd (Yugoslavia)) | Mitrovic-Tutundzic, V. | Vulic, D. | Obradovic, V. | Damnjanovic, M.
Primary production of phytoplankton and diversity and biomass of zooplankton of the Sava reservoir (artificial lake), Serbia (Yugoslavia), was studied during the summer and autumn in 1996. The study results were compared with the research results by Perisic et al. (1984) obtained before the dredging of the lake bottom, when bottom sediments with macrophytes were removed. It was found that the water quality was improved in comparison with previous period.
Показать больше [+] Меньше [-]Establishing of heavy metals contents of the Sava river sludge [Servia, Yugoslavia]
1997
Maljevic, E. | Stojanovic, Z. (Republicki hidrometeoroloski zavod Srbije, Beograd (Yugoslavia))
The paper provides experimental results of testing the content of heavy metals, and other harmful and dangerous matters of the Sava river sludge (Serbia, Yugoslavia). The testing carried out by the Republic Hydrometeorological Service of Serbia (Yugoslavia), has been in compliance with the program of testing the Sava river water and sludge quality along the river flow. The establishing of sludge pollution range is not based upon values of maximum allowable concentrations. The most complex is the issue of heavy metals contents, since these also represent the natural contents of soil and minerals. However, considering the process of migration and distribution of heavy metals, and other harmful and dangerous matters discharged from utilities, industrial and power supply facilities, provides the basis for estimating the environmental pollution as well.
Показать больше [+] Меньше [-]Evaluation of water quality in Hydrosystem Danube-Tisza-Danube [Serbia, Yugoslavia] according to composition and structure of fish communities
1997
Maletin, S. | Djukic, N. | Miljanovic, B. | Ivanc, A. | Pujin, V. (Univerzitet u Novom Sadu, Novi Sad (Yugoslavia). Prirodno-matematicki fakultet, Institut za biologiju)
A complex ichthyological analysis of the individual sections of the DTD (Danube-Tisza-Danube)-Backa canal system (Serbia, Yugoslavia) performed during 1996 vegetation period 23 fish species from 7 families. On the basis of the occurrence and abundance of indicators and limnosaprobic parameter, water quality of the analyzed canal sections was found to be beta-mesosaprobic index ranging from 2.15 to 2.21. The obtained results show that water quality of this DTD (Danube-Tisza-Danube) canal sections (Bajski Kanal, Odzaci-Sombor, Vrbas-Bezdan and Novi Sad-Savino Selo canals) corresponds to its purpose. The fish community representing an important factor of a whole aquatic biocenose, in addition to its undoubtedly indicator values also representing an active factor in the process of selfpurification and quality preservation of whole hydrosystem.
Показать больше [+] Меньше [-]Information system for water quality management [Serbia, Yugoslavia]
1997
Djordjevic, B. | Milanovic, T. (Gradjevinski fakultet, Beograd (Yugoslavia))
Water quality observation is an important task which must performed at every water reservoir, especially at those whose water is used for water supply. In the purpose of easier and faster entering to storied data, for all potential users, and in the purpose of performing faster verification and handling data, two models are designed: 1) data base and 2) information system for dam observation and water quality management. These two models are parts of the Information System of Serbia for Water Resources Management, who is in development. Methodological bases of those two systems are presented in the paper.
Показать больше [+] Меньше [-]Influence of oil spill after bombarding of oil refinery on microbiological quality of groundwater in resources "Ratno Ostrvo" [Serbia, Yugoslavia]
2001
Petrovic, O. | Dalmacija, B. | Simeunovic, J. | Radnovic, D. | Matavulj, M. | Gajin, S. (Prirodno-matematicki fakultet, Novi Sad (Yugoslavia). Institut za biologiju)
Proportional presence of phytoplankton group in touristic part of Palic lake [Serbia, Yugoslavia]
2001
Dulic, S. | Mrkic, B. (Zavod za zastitu zdravlja, Subotica (Yugoslavia))
The analysis of the phytoplakton and phytoperiphyton communities in the Palic lake (Serbia, Yugoslavia), has been performed with aim the water quality evalution. The determining and following proportional presence of phytoplankton were in the fourth sector of lake during 1998, 1999, and 2000. During the period of investigation, the phytoplankton community was characterized by forms of Chlorophyta, Cyanophyta, Euglenophyta and Bacillariophyta. During the investigation it was perceived the change in proportional participation in the presence of the four alga group mentioned above. The most representative percent was the Chlorophyta group, with values from 44.4%, to 54.7%. The other phytoplakton group has less values of percentage in the values.
Показать больше [+] Меньше [-][Lake Prespa [The former Yugoslav Republic of Macedonia]: comparative investigations of watershed and lake water]
2001
Jordanoski, M. | Veljanoska-Sarafiloska, E. (Hidrobioloski zavod, Ohrid (The Former Yugoslav Republic of Macedonia))
Criteria for obtaining quality indicators of surface waters: an example of the South Morava river basin [Serbia, Yugoslavia]
2001
Veljkovic, N. (Vodovod, Leskovac (Yugoslavia)) | Milenkovic, S. | Dopudja-Glisic, T.
The work gives the regime of surface water flows with hydrographic net and the regime of waters at hydrologic stations for the period of 1988-1998. Consequently in this paper will be designed a resonant indicator which is derived out of the composite index group of WQI for the flow field in the period under research. Depending on the index points won at the examined profiles, estimation of waterflows quality will be adapted to the goals of indicator users, in this case to the public. Indicators of the type very poor, poor, good, very good and excellent. Hereto it is important to mention that hereby validity of original composite indicator will have to be sacrificed.
Показать больше [+] Меньше [-]Survey of aquatic macrophytes and estimate of water quality of the lake Provala [Serbia, Yugoslavia]
2001
Stojanovic, S. | Popovic, M. | Nikolic, Lj. | Malencic, Dj. (Poljoprivredni fakultet, Novi Sad (Yugoslavia))
The lake Provala near Vajska (Serbia, Yugoslavia) was created by the embankment performation during high Danube river levels in 1924. It is a very important water ecosystem of natural origin, which is a fact of great importance for exact biological and ecological research. Miljanovic (1996) and Pujin (1997) present the first lake Provala water state data. They emphasise the reinforced eutrophication process in the shore region. This paper presents the review of the macrophytes vegetation of the lake Provala recent state for the first time, with special attention to dominant plant species. Based on the present taxons analysis, as well as water chemical parameters analysed (NH4(+), NO3(-), NO2(-), PO4(3-), HPK, BPK, pH), it can be concluded that the eutrophication process is present in this water micro-reservoir. It is especially true for the shore region and shallow waters, where the process is already well under way and very fast. These research results can be used to efficiently protect this natural water ecosystem.
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